ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2006
Large functional variability in cockroach photoreceptors: optimization to low light levels.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Changes in electrophysiological properties of photoreceptors in Periplaneta americana associated with the loss of screening pigment.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2018Article
- Phenotypic plasticity inThe Journal of general physiology · 2018Article
- The role of ocelli in cockroach optomotor performance.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2018Article
- Multiple Representations of Space by the Cockroach,Frontiers in psychology · 2018Article
- Insect ArylalkylamineFrontiers in molecular biosciences · 2018Review
- Behavioral responses to visual overstimulation in the cockroach Periplaneta americana L.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2017Article
- How a fly photoreceptor samples light information in time.The Journal of physiology · 2017Review
- EAG channels expressed in microvillar photoreceptors are unsuited to diurnal vision.The Journal of physiology · 2017Article
- The remarkable visual capacities of nocturnal insects: vision at the limits with small eyes and tiny brains.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017Review
- Insect photoreceptor adaptations to night vision.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017Review
- Distinct roles of light-activated channels TRP and TRPL in photoreceptors ofThe Journal of general physiology · 2017Article
- Visual ecology and potassium conductances of insect photoreceptors.Journal of neurophysiology · 2016Article
- Three spectrally distinct photoreceptors in diurnal and nocturnal Australian ants.Proceedings. Biological sciences · 2015Article
- Transcriptome analysis and RNA interference of cockroach phototransduction indicate three opsins and suggest a major role for TRPL channels.Frontiers in physiology · 2015Article
- Refractory sampling links efficiency and costs of sensory encoding to stimulus statistics.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014Article
- Elementary and macroscopic light-induced currents and their Ca(2+)-dependence in the photoreceptors of Periplaneta americana.Frontiers in physiology · 2014Article
- Membrane filtering properties of the bumblebee (Bombus terrestris) photoreceptors across three spectral classes.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2013Article
- Postembryonic developmental changes in photoreceptors of the stick insect Carausius morosus enhance the shift to an adult nocturnal life-style.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012Article
- Cellular elements for seeing in the dark: voltage-dependent conductances in cockroach photoreceptors.BMC neuroscience · 2012Article
- A fast and flexible panoramic virtual reality system for behavioural and electrophysiological experiments.Scientific reports · 2012Article
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Authors and funding
4 authors.
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Abstract
The compound eyes of insects contain photoreceptors in small eyelets, ommatidia. The photoreceptors generally vary very little from ommatidium to ommatidium. However, in the large compound eyes of the cockroach (Periplaneta americana), previous studies have shown large differences in the optical structure between the ommatidia. The anatomy suggests pooling of 6-20 photoreceptor signals into one second-order cell in the first synapse. Here, we show and characterize an unexpectedly large and seemingly random functional variability in the cockroach photoreceptors in terms of sensitivity, adaptation speed, angular sensitivity, and signal-to-noise ratio. We also investigate the implications of action potentials, triggered by the light-induced membrane depolarization in the photoreceptor axons. The combination of the functional features reported here is unique among the compound eyes. Recordings from the proximal parts of the thin and long photoreceptor axons or small and distant second-order neurons are not practical with the present methods. To alleviate this lack of data, we used computer simulations mimicking the functional variability, spike coding, and pooling of 12 photoreceptor signals, on the basis of our recordings from the photoreceptor somata and distal axons. The predicted responses of a simulated second-order cell follow surprisingly reliably the simulated light stimuli when compared with a simulation of functionally identical photoreceptors. We hypothesize that cockroach photoreceptors use action potential coding and a kind of population coding scheme for making sense of the inherently unreliable light signals at low luminance and for optimization of vision in its mainly dim living conditions.
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